        body {
            width: 960px;
            margin: 0 auto;
            background-color: rgb(222, 222, 222);
        }
       #head_div {
           position: fixed;
           background-color: rgb(51, 51, 51);
           width: 100%;
           top: 0px;
           left: 0px;
           padding: 10px;
           z-index: 10;
           height: 50px;
        }
        #head_div ul {
            position: absolute;
            right: 0px;
            top: 0px;
        }
        #head_div ul li {
            float: left;
            margin-right: 30px;
        }
        #first_div, #second_div, #picture_div, #last_div, #side_div {
            position: relative;
            left: auto;
            border: solid 1px;
            padding: 10px;
            margin: 20px;
            background-color: white;
        }
        .two {
            color: rgb(112, 113, 107);
            font-size: 100%;
        }
        #first_div {
            position: relative;
            margin-top: 65px;
        }
        #copy_div {
            border: solid 1px;
            text-align: center;
            font-size: 75%;
            color: white;
            background-color: black;
            font-family: Arial;
            height: 60px;
        }
        #table1 th{
            background-color: rgb(51, 51, 51);
            width: 300px;
            text-align: left;
            margin: 0 auto;
        }
        .font_weight td{
            font-weight: bold;
            background-color: rgb(204, 204, 204);
        }
        .title {
            width: 200px;
            float: left;
            text-align: right;
            padding-right: 10px;
        }
        .title_tips {
            position: relative;
            left: 210px;
            color: #cccccc;
            font-size: 90%;
        }
        #side_description_div textarea {
            width: 560px;
        }
        #side_submit_div input{
            width: 880px;
            height: 30px;
            text-align: center;
            background-color: blue;
        }

